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Old 07-22-2017, 09:27 AM
Greg_Toman Greg_Toman is offline
Join Date: Nov 2007
Location: Caledonia, MI
Posts: 30
Default GRT Avionics Aircraft Mounted Heads-Up Display

Just a quick post to point out that GRT Avionics now has an aircraft mounted Heads-Up Display. It is based on the Hudly aftermarket automotive HUD, available for only $300.

It will be on display at Airventure. I absolutely love it. For me, it is much more practical than the android glasses. I simply do not want to fly without it.

You can read about it here:

Apparently something we did took our website down, but it is back up now. Some portions of it might be loading unit 3:30 pm EDT.

Thanks, and fly safely to Oshkosh. I will see you there.

Greg Toman
GRT Avionics/Grand Rapids Technologies

Last edited by Greg_Toman : 07-22-2017 at 12:28 PM.
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Old 07-22-2017, 10:20 AM
YellowJacket RV9 YellowJacket RV9 is offline
Join Date: Oct 2012
Location: Clearwater, FL / KZPH
Posts: 1,118

Sounds intriguing. Is it bluetooth or hard-wired?

Chris Johnson
RV-9A - Done(ish) 4/5/16! Flying 4/7/16
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Old 07-22-2017, 12:34 PM
Greg_Toman Greg_Toman is offline
Join Date: Nov 2007
Location: Caledonia, MI
Posts: 30
Default Hud Communication

The video for the HUD is generated by our android app. The android app receives the data it needs via Bluetooth from a GRT EFIS. We recommend using an used android phone for this purpose. If you don't have one, you can buy one on Ebay for well under $100. Phone service is not required, but MHL connectivity is required.

I expect a HUD will change everything that we will come to expect in our airplane's instrumentation.

Greg Toman
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Old 07-22-2017, 01:01 PM
rmartingt's Avatar
rmartingt rmartingt is online now
Join Date: Nov 2006
Location: Savannah, GA
Posts: 746

Now that's cool!

I know GRT wants to bring customers in to its own in-house products, but I wonder how the projector communicates, and whether some kind of Raspberry Pi or Arduino device could pick air data off the bus from other EFIS models and transmit it...
RV-7ER - fuselage structure in work
There are two kinds of fool in the world. The first says "this is old, and therefore good"; the second says "this is new, and therefore better".
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Old 07-22-2017, 01:54 PM
moosepileit moosepileit is offline
Join Date: Dec 2010
Location: Floyds Knobs, IN
Posts: 237

List of MHL phones from gethudly site and a tester url.
Phone & App Compatibility
List of MHL-Enabled Phones

Hudly Support March 27, 2017 17:05
If you are on mobile, you can check if your phone has MHL here

Brand Model
Acer CloudMobile
Alcatel ONE TOUCH 997
Alcatel ONE TOUCH 997A
Alcatel ONE TOUCH 997D
Alcatel ONE TOUCH 998
Alcatel S800
Asus Padfone 2
Fujitsu 201F
Fujitsu A 301F
Fujitsu ARROWS A 101F
Fujitsu ARROWS X F-10D
Fujitsu ARROWS Z F-10D
Fujitsu EM01F
Fujitsu F-01F
Fujitsu F-02F
Fujitsu F-02H
Fujitsu F-03F
Fujitsu F-03G
Fujitsu F-04G
Fujitsu F-04H
Fujitsu F-06E
Fujitsu FJL22
Fujitsu FJT21
Fujitsu M702
Fujitsu REGZA Phone T-02D
HTC 0P6B100
HTC 0PK7110
HTC 0PL2100
HTC 0PL2200
HTC Amaze 4G
HTC Butterfly
HTC Butterfly S
HTC Flyer
HTC Jetstream
HTC One X+
HTC Raider
HTC Rezound
HTC Sensation
HTC Sensation 4G
HTC Sensation XE
HTC Velocity
HTC Vivid
Huawei 403HW
Huawei Ascend D Quad
Huawei Ascend D1
Huawei Ascend D1 Quad
Huawei Ascend D1 Quad XL
Huawei Ascend D2
Huawei Ascend P1
Huawei Ascend P1 S
Huawei Ascend P2
Huawei D2-6114
Huawei Huawei MediaPad 7 (S10-102L, S10-103L) Lite Android Tablet
Huawei HW-03E
Huawei Mediapad M1 8.0 (403HW)
Huawei P6 S-L01
Huawei P6 S-U06
Huawei S10-231L
Huawei S10-231W
Huawei S7-951wd
Huawei S7-961w
Huawei S8-303LY
Huawei U9200
ITE Tech. Inc. IT6681
ITE Tech. Inc. IT6682
ITE Tech. Inc. IT6683
Kyocera KLY22
Kyocera KYL21
Kyocera KYV31
Kyocera KYY21
Kyocera KYY22
Kyocera KYY23
Kyocera WX10K
LG Nitro HD
LG Optimus 3D Max
LG Optimus 4X HD
LG Optimus G (LG-F180L)
LG Optimus GJ (LG-E975W)
LG Optimus LTE II
LG Optimus LTE Tag
LG Optimus Vu
LG Prada
LG Verizon Spectrum
Meizu MX
Meizu MX 2
NEC E1920-01
NEC E1921-01
NEC E1921-02
NEC E1921-03
NEC Casio Media X N-06E
OPPO Find 3
Panasonic Eluga P P-03E
Pantech Vega LTE
Samsung AT&T Galaxy Note LTE 5.3"
Samsung AT&T Galaxy S II *
Samsung AT&T Galaxy S II Skyrocket*
Samsung AT&T Galaxy S III *
Samsung Captivate Glide *
Samsung Cricket Galaxy S III *
Samsung Epic 4G Touch
Samsung Galaxy Express *
Samsung Galaxy K Zoom *
Samsung Galaxy Mega 6.3 and 5.8*
Samsung Galaxy Nexus *
Samsung Galaxy Nexus 2
Samsung Galaxy Note 3 *
Samsung Galaxy Note 3 Neo *
Samsung Galaxy Note 4 *
Samsung Galaxy Note 5.3"
Samsung Galaxy Note 8 *
Samsung Galaxy Note Edge *
Samsung Galaxy Note II *
Samsung Galaxy Note Pro *
Samsung Galaxy S II *
Samsung Galaxy S III *
Samsung Galaxy S4 *
Samsung Galaxy S4 TD-LTE *
Samsung Galaxy S5 *
Samsung Galaxy S5 Dual Sim *
Samsung Galaxy S5 Zoom *
Samsung Galaxy Tab 3 8", 10.1" *
Samsung Galaxy Tab S 10.5" *
Samsung Galaxy Tab S 8.4" *
Samsung Galaxy TabPRO 10.1" *
Samsung Galaxy TabPRO 8.4" *
Samsung S4 Active *
Samsung S4 Zoom *
Samsung SC-01F
Samsung SC-02F
Samsung SCL22
Samsung SGH-M819N
Samsung SHV-E470S
Samsung SM-G900T3
Samsung SM-G906S
Samsung SM-G910S
Samsung SM-N9002
Samsung SM-N9005
Samsung SM-N9006
Samsung SM-N9008
Samsung SM-N9009
Samsung SM-N900A
Samsung SM-N900D
Samsung SM-N900DSM-N900J
Samsung SM-N900J
Samsung SM-N900K
Samsung SM-N900L
Samsung SM-N900P
Samsung SM-N900R4
Samsung SM-N900S
Samsung SM-N900T
Samsung SM-N900V
Samsung SM-N900W8
Samsung SM-N900W9
Samsung SM-N900X
Samsung SM-N910A
Samsung SM-N916S
Samsung SM-P600
Samsung SM-P601
Samsung SM-P605
Samsung SM-P605K
Samsung SM-P605L
Samsung SM-P605M
Samsung SM-P605S
Samsung SM-S902L
Samsung SM-T320NU
Samsung SM-T707D
Samsung SM-T807
Samsung SM-T815
Samsung SM-T817
Samsung SM-T817A
Samsung SM-T817P
Samsung SM-T817R4
Samsung SM-T817T
Samsung SM-T817V
Samsung SM-T817W
Samsung SPH-L720T
Samsung Sprint Galaxy Nexus
Samsung Sprint Galaxy S III *
Samsung Straight Talk Galaxy S III*
Samsung T-Mobile Galaxy S II *
Samsung T-Mobile Galaxy S III *
Samsung U.S. Cellular Galaxy S III *
Samsung Verizon Galaxy Nexus LTE
Samsung Verizon Galaxy S III *
Sharp AQUOS Phone Sv SH-10D
Sharp AQUOS Phone Zeta SH-09D
Sharp AQUOS Xx 106SH
Sharp SH-08E
Sharp SH-930W
Sony 401SO
Sony 501SO
Sony C6802
Sony C6902
Sony C6903
Sony C6906
Sony C6916
Sony C6943
Sony D5503
Sony D5803
Sony D5833
Sony D6503
Sony D6603
Sony D6616
Sony D6633
Sony D6643
Sony D6653
Sony E5803
Sony E5823
Sony E6508
Sony E6533
Sony E6553
Sony E6603
Sony E6633
Sony E6643
Sony E6653
Sony E6683
Sony E6833
Sony E6883 & E6853
Sony L39h
Sony L39t
Sony L55t
Sony L55u
Sony M55w & SO-02G
Sony SGP412
Sony SGP712
Sony SGP771
Sony SO-01F
Sony SO-01G & SOL26
Sony SO‐01H
Sony SO-02F
Sony SO‐02H
Sony SO-03G
Sony SO‐03H
Sony SO-04D
Sony SO-05G
Sony SOL23
Sony SOL24
Sony Sony Xperia Z5
Sony Sony Xperia Z5 Compact
Sony Sony Xperia Z5 Premium
Sony SOT31
Sony SOV31 & 402SO
Sony SOV32
Sony Xperia A
Sony Xperia A2
Sony Xperia GX
Sony Xperia J1 Compact
Sony Xperia SP
Sony Xperia SX
Sony Xperia T
Sony Xperia Tablet Z
Sony Xperia Tablet Z4
Sony Xperia TL
Sony Xperia TX
Sony Xperia UL
Sony Xperia V
Sony Xperia Z
Sony Xperia Z Ultra
Sony Xperia Z1
Sony Xperia Z1 Compact
Sony Xperia Z1 f
Sony Xperia Z1S
Sony Xperia Z2
Sony Xperia Z2 Tablet
Sony Xperia Z3
Sony Xperia Z3 Compact
Sony Xperia Z3 Compact Tablet
Sony Xperia Z3+
Sony Xperia Z3v
Sony Xperia Z4
Sony Xperia Z4v
Sony Xperia ZL
Sony Xperia ZR
Xiaomi Xiaomi Phone 2
ZTE Grand Era LTE
ZTE Grand Memo
ZTE Grand S
ZTE Nubia Z5
ZTE U970

Last updated 2/20/2017
RV-6 N91GG, bought from builder.
O-320, slider, carb, mags, FP
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Old 07-22-2017, 08:31 PM
Canadian_JOY Canadian_JOY is offline
Join Date: Aug 2007
Location: Ontario, Canada
Posts: 1,667

So for those of us who already own GRT EFIS products (like my HX and Mini-X) what's the cost going to be for the GRT portion of product (GRT Remote App with HUD support)?

I'm not yet flying but will be soon. I looked hard at the GRT Vision glasses and would have gone that route but really wanted a HUD. Now I'll have to do some measuring in our aircraft to see how this HUD might mount. The necessity for proximity between the glass and projector is the primary challenge that I see.

This could really be a huge step forward for our cockpit - very exciting. And, as usual, GRT brings it to market ahead of everybody else. Well done Greg and team!
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Old 07-22-2017, 11:58 PM
Greg_Toman Greg_Toman is offline
Join Date: Nov 2007
Location: Caledonia, MI
Posts: 30
Default Hud Details

The GRT Remote app, with the HUD support, is no charge, but the HUD part only works for the first 5 hours of HUD use. After 5 hours, if you like the HUD, it will cost $150 to enable the HUD functionality, permanently. This will include all updates to the HUD. The idea is to make it no-risk to give it a try.

As for the spacing of the projector, combiner glass, windscreen, is not a challenge. It will fit in just perfectly with no effort. I stuck mine right in front of me, and love it there. You will find it does an amazing job...far beyond your expectations. Even the projector, that I thought might block some of my forward vision, turned out to be a non-issue.

I was a bit torn on charging for this at all, as I feel the benefit of a HUD is substantial, and I want to see as many as possible make use of it. I am convinced the heads-down display is a compromise, and a heads-up display is a much more effective way to get that data into the pilots head, in a way that is natural.

Greg Toman
GRT Avionics/Grand Rapids Technologies
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Old 07-23-2017, 02:58 AM
catmandu's Avatar
catmandu catmandu is offline
Join Date: Dec 2005
Posts: 636

What is the weight of the projector / how does it need to be mounted? IOW, is it going to be usable with my tip up canopy?
Mike C.
Maryland's Eastern Shore
stuck in 1/5th of an Arrow, my partners won't let me go
RV-6A bought flying
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Old 07-23-2017, 07:52 AM
F1R F1R is offline
Join Date: Nov 2010
Location: ____
Posts: 567
Default Projector Orientation

Can the Projector be mounted in an area down low pointing up, say in front of the stick , with the combiner glass on the edge of the glare shield?


Can the projector be neslted into a notch in the top of the glare sheild aimed upward at the combiner on the canopy?
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Old 07-23-2017, 09:34 PM
Greg_Toman Greg_Toman is offline
Join Date: Nov 2007
Location: Caledonia, MI
Posts: 30
Default Mounting options

The projector only weights a few ounces. It mounts using double-sided foam tape. It would mount equally as well on a tip up as a slider. On a slider, the projector mounts on the very top of the windscreen. It seems to be designed to have the combiner glass about 7.3 inches from the base of the project. I experimented, and I found I liked it about 8 inches away...maybe even a little more. It makes the image a little larger.

The app will have an option to invert the image. This will allow mounting the projector from below. The projector will still need to be 7-8 inches from the combiner glass, so I am not sure how well that will work. The angle of the combiner glass would be more parallel to the windscreen, allowing it to be positioned further forward, which might help.

We are also going to see if it is practical for the app to reverse (mirror) the image. This would allow the use of a mirror to possibly allow for a compact, built-in type installation. Don't count on this yet though.

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